How does the cold of the universe come about, does the universe have a temperature, is it cold?

Hot and cold are opposites and unity, there is no cold without heat, and there is no heat without cold.

Cold and heat are perceptible to people, and the balance point is the living temperature that people can accept. And in the concept of the universe there is no such qualification, the basis of the universe is cold, because there is no energy, there are no particles with energy. However, even in a vacuum, there will be more or less energy particles.

Heat is the divergence of energy particles, and the contradictory properties of energy particles themselves cause them to move, and it is the vibration of this particle that produces all things in the world. From this point of view, the so-called cold is nothing, and the so-called hot is existence.

The energy particles of the universe can be regarded as infinite, they move infinitely, expand infinitely, transform infinitely, and can be regarded as a perpetual motion machine, but this technology is beyond the mastery of human beings, because the small environment of the earth is not suitable, and energy is always lost and escaped. Perpetual motion exists only when viewed from the perspective of the grand universe.

In addition, scientists have discovered that the universe will shrink, maybe it will reach its peak, and it will gradually decline and return to the singularity that was produced before. That's when it's really cold.

See The Great Theory of the Universe.

The universe is expanding, but the sum of energy remains the same, so the energy per unit volume gradually decreases.

The universe is a perpetual motion machine.

Hot and cold are only human references, there is no cold or heat in the universe, only radiation and no radiation.

Energy comes from the mass of combustion.

That's what the sun is.

The universe is very cold, but it also has temperature.

The lowest temperature in the universe is in an interior called the Bumojean Nebula. With a temperature of minus 272 degrees Celsius, this nebula is the coldest known place in the universe and is known as the "cosmic ice box".

In the empty universe, the temperature is minus Celsius, just above absolute zero. Absolute zero, also known as thermodynamic temperature zero, is the temperature at which all particles of matter stop their thermal motion. There can be no lower temperatures than absolute zero.

The third law of thermodynamics states that absolute zero cannot be reached. Therefore, the temperature in the universe can never reach absolute zero, that is, minus Celsius.

As a form of energy, heat is quickly absorbed in the universe, and its principle is probably not much like the sun's energy transmission to the earth.

Because the earth is a magnetic field moving from the south pole to the north pole, the same kind of objects are mutually repellent, and the differences are attracted to each other.

Because there is no life there.

Let's not talk about why the universe is cold, but think about it first, will there be a so-called "greenhouse effect" for the earth's deterrence? The reason is due to the excessive amount of water vapor and carbon dioxide in the atmosphere, because their excess causes the increase in the density of greenhouse gases in the atmosphere and the excessive heat retention medium.

Therefore, it can be concluded that the more greenhouse gases, the higher the temperature, and then push, the more hot medium, the higher the temperature, and then push the less hot medium, the lower the temperature, and finally it is concluded that there are almost no hot medium gases in the universe, so it.

Cold. over

Dust tremor energy is not required to get cold.

1. Because the universe where Sun Nian is now is still in a state of expansion, the volume will become larger, and the original heat will be distributed to all parts of the universe, and the temperature of a certain place will decrease, and the larger the universe, the lower the temperature.

2. It may also be that there is space outside the universe, and the outside is colder than the universe, and the heat of the universe is transferred, and the brother is sleepy and cold.

However, it is most likely that both possibilities are at work.

According to the Big Bang theory, our universe is expanding unbalancedly, the space is getting bigger and bigger, and the matter and energy in the universe are certain, and according to the law of entropy increase, the heat will continue to be transferred from high temperature to low temperature, and finally reach the overall equilibrium, so our universe will continue to cool down, and finally reach the cosmic heat death.

The coldest is not dead, and the coldest place is the coldest!

The universe is huge, and now that each of us lives in the same universe, we may not have time to explore the mysteries of the universe, and we know very little about it, so I will tell you some cold knowledge about the universe.

Planets that can float are known as celestial bodies that orbit stars and are spherical, but as the name suggests, planets are certainly celestial bodies that can walk. Saturn, I think everyone knows, he is one of the eight planets, and the origin of the name is because its color is earthy yellow, so it is called Saturn. Saturn is very dense, less dense than water, you can imagine if you put it on water, will it float, but Saturn is very large, you need water wider than Saturn to put it.

Icy Mars Mars is also one of the eight planets, and it is called Mars because of its very bright and fiery red color. Mars is too far away, so the temperature of Mars is particularly low, the average temperature is generally about minus 60 degrees Celsius, and the minimum temperature can reach minus 100 degrees Celsius. Frozen carbon dioxide will be on the surface of Mars, and it will not fuse into the air until the temperature on Mars rises above the melting point of carbon dioxide.

The centennial Venus Venus is also one of the eight planets, in ancient times, there was a Taibai straight saying, named Taibai Star. Venus is very bright, it is the second brightest celestial body, according to our earth's calculation of the time of a day, in fact, it is the time for the earth to rotate once, and a year is the time for the earth to make a revolution, that is, the time for the earth to revolve around the sun. Venus is very strange, it takes 243 Earth days for Venus to rotate for one week, which means that we have lived on Earth for more than a year, and if we live on Venus, living for one day is equivalent to living on Earth for more than a year.

Living on Venus for one year is equivalent to living on Earth for hundreds of years. That's why I call him Centennial Venus.

Strange moon The first person to take Apollo to the moon in the United States walked out of the capsule and left the first footprint of the moon in human history on the moon, because there is no atmosphere on the moon, so there will be no wind, and the footprints stepped on by American astronauts at that time are estimated to be preserved for millions of years, and the footprints will not be deformed, let alone disappear, or will remain the same, unless the moon is hit by a large number of meteorites. Knock the footprints apart.

The temperature in space is minus zero, but you don't feel cold when you are active in space, because all objects stop moving at this temperature.

Due to the limitation of the speed of light, the Sun we see with the naked eye is the Sun eight minutes ago, because the average distance between the Sun and the Earth is 149.6 million kilometers, and even the fastest light travels a full eight minutes.

First of all, Mercury actually has no water, and the perennial temperature is above 200 degrees, and secondly, there is no way to use a compass on Venus, because the compass works on the principle of using the magnetism of the magnetic field, and finally people jump highest at the equator and the lowest jump at the poles. This is because the equator is the farthest away from the center of the earth and experiences the least gravitational pull, while the poles are closest to the center of the earth and experience the most gravitational pull.

The first person in the United States to take Apollo to the moon walked out of the space capsule and left the first footprint of the moon in human history on the moon, because there is no atmosphere on the moon, so there will be no wind, and it can be preserved for millions of years, and the footprint will not be deformed, let alone disappear, unless the moon is hit by a large number of meteorites and the footprints are scattered.

A black hole is not a hole, the predecessor of a black hole is a star, a black hole can not only absorb the surrounding planets and meteorites into its own range, but also absorb rays and light from the universe.

As you may have heard, the universe is very, very cold. What's going on here?

In order to understand what temperature is in the universe, we must first understand what the temperature in the mouth of scientists means.

In everyday life, temperature is your personal sensation, or the number on the thermometer. So what do scientists think about temperature? What do they think temperature is?

Actually, temperature refers to the movement of molecules. Molecules are tiny particles that make up everything in the world, and we can't see them with the naked eye. If the molecules are moving more violently and colliding with each other, then the temperature will be higher.

For example, the water molecules in boiling water are bumping into each other like crazy, which is why boiling water is so hot.

When the universe is younger, it gets hotter. The young universe is a hot place. However, as the universe slowly expands, molecules begin to spread into a wider space, and the distance between them becomes farther and farther, and it becomes difficult to collide with each other, so the temperature of the universe begins to drop.

So, as the universe expands, the temperature of the universe decreases.

Our universe is probably more than 13 billion years old. And its temperature starts to drop slowly from birth, so now the temperature in space is very low.

So, how low is the temperature of the universe right now?

In the warm spring, our room temperature is generally around 25 degrees Celsius. 25 degrees Celsius is about 298 Kelvin above absolute zero. Kelvin is another unit of temperature.

0 Kelvin is absolute zero, and absolute zero is about minus Celsius. Absolute zero is really cold.

What does absolute zero have to do with the motion of molecules? We say that when the temperature of a substance approaches absolute zero, the molecules that make up the substance stop moving completely.

So, what is the temperature in outer space? The average temperature in outer space is only 3 degrees Celsius above absolute zero, which is about minus 270 degrees Celsius. It's unusually cold!

To cope with such cold conditions, scientists and engineers must design and build special instruments and spacecraft that allow spacecraft and astronauts to work safely.

The astronauts you see on TV working outside the capsule wear spacesuits that protect against the biting cold, and these spacesuits are even equipped with electronic heaters close to your fingers. However, even though they are wearing such warm spacesuits, some astronauts say they can feel the cold of the universe.

Satellites orbiting the Earth, as well as equipment on the International Space Station, also need to be protected from the cold. But they don't shiver like humans, because they can receive sunlight, so they can be roasted by the sun, and they are not so cold.

So where is the coldest place in the universe? The coldest place we know of at the moment is the Pull-Back Bar Nebula. The Pullback Bar Nebula is located 5,000 light-years from Earth.

Because this nebula expands at a very fast rate, it has a very low temperature. Scientists have measured it and found that its temperature is 1 Kelvin, that is, only about 1 degree above absolute zero.

Compiled by the Seven Monarchs.

From the China Digital Science and Technology Museum to open a hut.

If we use the big ** theory to explain that the temperature of the universe is decreasing, it actually smells of a circular argument.

For example, if you are given an airtight container, there will be no heat dissipation in the container. If the volume of the container is expanded, will the temperature inside the container become smaller?

The four major astronomical discoveries in the 60s of the 20th century, the cosmic 3k microwave background radiation, happened to be an important discovery that supported the theory of the universe, because according to the theoretical inference, from the big ** to the present, the temperature has almost dropped to about this temperature.

Therefore, using the big ** theory to explain the expansion and cooling of the universe is probably a bit of a circular argument. So you can use the above analogy to understand it.

Also, upstairs said that heat energy can resist the gravitational pull between planets to do work, you really have an idea. I have a question for the god upstairs, do you know what heat energy is? Have you studied thermology?

According to the observation of the Hubble telescope, the entire universe is expanding, and since it is expanding, the volume will increase, and the heat energy of the universe will be converted into kinetic energy and work to resist the gravitational pull between the planets, so the universe is cooling.

Absolute zero degrees, and the universe is flooded with all kinds of radiation, so the temperature is slightly higher than this by 1-3 degrees

Yes, if you think about it, of course the bread that has just been taken out of the oven will slowly get cold.

From a scientific point of view, the universe has been expanding since the universe is big, first the heat energy of all objects is at one point, of course, it is very hot, and after the expansion of the universe for a long time, those heat energy has been dispersed, so it has cooled to the current temperature, and the current temperature is only 2 °

Because the universe is constantly expanding.